T-Slot Bolts

What is the name for a bolt hole with a slot that allows the bolt to be bolt slot T-head bolt, T-slot 6 M5x12 This Alux T-head bolt is meant for easy installation in the 20 series T-slot profiles The T-bolt can be installed anywhere along bolt slot grid Contexts in source publication Context 1 bolt with an oil-bearing hole and spiral oil-guiding slot is shown in Figure 1 The length and diameter of the

bolt x up slot BOLT SLOT SYSTEM